Welder Red Seal · Question
When using the SMAW process with a DCEP (Direct Current Electrode Positive) setup, where is the majority of the heat concentrated?
In DCEP, or reverse polarity, electrons flow from the workpiece to the electrode. This concentrates approximately two-thirds of the arc's heat on the workpiece,
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Question: When using the SMAW process with a DCEP (Direct Current Electrode Positive) setup, where is the majority of the heat concentrated?
Answer options:
- Evenly between the electrode and the workpiece
- On the electrode tip ✅ On the workpiece
- In the surrounding shielding gas
Correct answer: On the workpiece
Explanation: In DCEP, or reverse polarity, electrons flow from the workpiece to the electrode. This concentrates approximately two-thirds of the arc's heat on the workpiece, resulting in deeper penetration.
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